[LARTC] iptables acknoledgment match

[Sebastián A. Aresca]

Hi:
    Anybody have the iptables line to match ack?

iptables -t mangle -A QoS_Test -p tcp --tcp-flags SYN,RST,ACK ACK -m 
length --length :128

I try this but it's not working for me.

Best regards.

Sebastián A. Aresca